JavaScript: Create a specified number of elements and pre-filled string value array

Last update on August 09 2022 03:31:23 (UTC/GMT +8 hours)

JavaScript Array: Exercise-37 with Solution

Write a JavaScript function to create a specified number of elements and pre-filled string value array.

Test Data:
console.log(array_filled(3, 'default value'));
["default value", "default value", "default value"]
console.log(array_filled(4, 'password'));
["password", "password", "password", "password"]

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to create a specified number of elements and pre-filled string value array</title>
</head>
<body>

</body>
</html>

JavaScript Code :

function array_filled(n, val)
{
    return Array.apply(null, Array(n)).map(String.prototype.valueOf,val);
}

console.log(array_filled(3, 'default value'));
console.log(array_filled(4, 'password'));

Sample Output:

["default value","default value","default value"]
["password","password","password","password"]

Flowchart:

ES6 Version:

function array_filled(n, val)
{
    return Array(...Array(n)).map(String.prototype.valueOf,val);
}

console.log(array_filled(3, 'default value'));
console.log(array_filled(4, 'password'));

Live Demo:

See the Pen JavaScript - Create a specified number of elements and pre-filled string value array-array-ex- 37 by w3resource (@w3resource) on CodePen.

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JavaScript: Create a specified number of elements and pre-filled string value array

JavaScript Array: Exercise-37 with Solution

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